tallest residence, and the world's second tallest hotel. 3 Princess Tower 414 metres (1,358 ft) Former tallest residential building in the world. 2 Marina 101 425 metres (1,394 ft) Completed in 2017, it is the 2nd-tallest residential building in the world, after 432 Park Avenue. 210 This is a list of the buildings that once were the tallest in Dubai. 18 The Index 326 metres (1,070 ft) Burj Al Arab 321 metres (1,053 ft) Tallest building in the world used exclusively as a hotel since its completion.